Two manufacturers of plastic venting systems are pushing for a national fuel gas code in the United States that requires Underwriters Laboratories Inc. certification for use in some natural gas-fired ...
Should PVC schedule 40 pipe and fittings continue to be permitted for combustion exhaust venting? You and I have come across PVC that has gone from white to many colored shades: from light yellow to ...
Watch as Charlotte Pipe associates test DWV plumbing systems and measure sound, with and without insulation products. The test shows cast iron soil pipe, solid wall PVC and foam core PVC. Please note, ...
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